Björn Olof Lennartson Kurtén (19 November 1924 – 28 December 1988) was a Finnish vertebrate paleontologist, belonging to the Swedish-speaking minority of his country.
Kurtén was born at Vaasa.
He was a professor in paleontology at the University of Helsinki from 1972 up to his death in 1988. He also spent a year as lecturing guest professor at Harvard University in 1971.
In Not from the Apes (1971) Kurtén argued that man's development has been separate from the apes since the Miocene, and that man did not descend from anthropoids, but rather the reverse:
In the course of this book, Kurten discusses seven “theses” dealing with human evolution. One such thesis is that man did not descend from the ape. By calling Propliopithecus a hominid, Kurten argues for a straight line from Propliopithecus to Ramapithecus and on to the “Dartians.” Since Propliopithecus predates the Dryopithecines, and the Dryopithecines were apes, our ancestors bypassed the apes in the early Miocene.
He was also the author of a series of books about modern man's encounter with Neanderthals, such as Dance of the Tiger (1978, 1980). When asked what genre these works belonged in, Kurtén coined the term paleofiction to describe his oeuvre. This genre was popularized by Jean M. Auel in her Earth's Children series of books. He received several awards for his books popularizing science, among others the Kalinga Prize from UNESCO.
In the 1980s, Kurtén also hosted a 6-part TV series about the ice age, co-produced by several Scandinavian TV channels.
Kurtén also published some fifty scientific works, two of them in cooperation with the Spanish paleontologist Miquel Crusafont Pairó.